ZEKE WEST C 22-21

Oil · District 7C · Lease #20927

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

534k BBL

Cum Gas

2.0M MCF

casinghead

Wells

2

Production

2020-02 — 2026-04

Peak Month

2020-05

Production History

Cum Oil: 533,594 BBL Cum Gas: 2,032,238 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

30,547 BBL/mo

Di (annual)

94.1%

b-factor

0.2

EUR

486,945 BBL

R-squared

0.860

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-02 — 2021-05 DE3 OPERATING LLC 16 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4203HPIONEER NATURAL RES. USA, INC.29,5002019-08-15
4403HPIONEER NATURAL RES. USA, INC.29,5002019-08-15